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I got a RPPI 2500W from a flea market it came with no paper work. i need to know if i have to connet 2 hot wire & 2 grounds or can I get by with 1 of each. And do they need to be connected to 2 batteries

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  • rjohns5 May 02, 2010

    Thanks works great



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Run a single hot wire directly from the battery to the inverter and use a single ground wire the ground the inverter. Suggest you add an inline fuse to the 'hot' line to protect the inverter.

Posted on May 01, 2010


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My inverter was working fine and i went to turn it on now i dont get any power out of any of the outlets. power light is on and no other sounds or signs of an issue ????

You turned it on with something plugged into it, right? Anyhow, you most likely blew the fuse which often can be hard to get it. You will have to slide the board out of the case and find the fuses, probably there are 2. Replace with the same type!! Try again without anything plugged in. If this does not fix your problem them you need to have it repaired by a professional.

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How do you connet 3-wire aftermarket signal lights to 2-wire lights?

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Connected a microwave (700 watt) and fault light turns on after few seconds on

engine has to be running with some high wattage items if your engine was running then your inverter is defective.

Mar 31, 2011 | RoadPro RPPI-2500W Inverter

1 Answer

My inverter is Roadpro 1500 but cannot power 700W microwave

How good is the connection to the battery? there are a lot of amps that have to flow fast and clamps just don't do it, lugged cables do!

Apr 25, 2010 | RoadPro RPPI-2500W Inverter

1 Answer

My inverter 1000w is not working.

Sadly replacement is the best option.

The better inverters are a pure-sine wave would recommend a 1500w it is better quality and will be a better replacement for you 1000w.

Hope this tip helps.


Feb 06, 2010 | RoadPro RPPI-2500W Inverter

1 Answer

I just bought a RoadPro 2500 and i want to buy like a dorm fridge how many watts or volts size would work??

If you are referring to the RoadPro RPPI-250
  • 2000 Watts Continuous Power
  • 2500 Watts Power Output @ 10 Minutes
  • 5000 Watts Peak Power Output.
  • A small fridge will use about 500 -700 watts, with startup wattage at around 2000watts.
  • So, a dorm fridge will work fine.
  • the RoadPro converts DC to AC voltage, so a regular 120 volt dorm fridge will work.
  • Jul 05, 2009 | RoadPro RPPI-2500W Inverter

    1 Answer


    For a 1ohm load it's positive to positive and negative to negative run 1 wire from one speaker to the other. Positive to positive neg to neg. Then 1 wire from the speakers to the amp. The amp will have + - + - on it's inputs for left and right speakers (if stereo) Use the outside positive and outside negative. If there are any switches on the amp that say "mono" "stereo" switch to "mono". Hope this helps

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